DR. GRETCHEN NICOLE ANDERSON D.O.
NPI 1811286297
Internal Medicine - Gastroenterology in Austell, GA
About Dr. Gretchen Nicole Anderson D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRETCHEN NICOLE ANDERSON D.O. (NPI 1811286297) is an individual gastroenterology provider in Austell, Georgia, licensed in Georgia (76269) and active in the NPI registry since April 2011. She is enrolled in Medicare PECOS, is affiliated with Phoebe Putney Memorial Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Gretchen Nicole Anderson D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Gretchen Anderson reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austell, GA 30106
- Reassigned Medicare billing, Georgia enrollment
- 3,885 clinicians in this Medicare group
Jasper, GA 30143
- Reassigned Medicare billing, Georgia enrollment
- 317 clinicians in this Medicare group
Albany, GA 31707
- Reassigned Medicare billing, Georgia enrollment
- Medicare enrollment name: Phoebe Physician Group Inc
- 1,118 clinicians in this Medicare group
Nashville, GA 31639
- Reassigned Medicare billing, Georgia enrollment
- 112 clinicians in this Medicare group
Nashville, GA 31639
- Reassigned Medicare billing, Georgia enrollment
- 118 clinicians in this Medicare group
Cincinnati, OH 45220
- Reassigned Medicare billing, Ohio enrollment
- 1,102 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Phoebe Putney Memorial Hospital
Acute Care Hospitals · Albany, GASgmc Health
Acute Care Hospitals · Valdosta, GAColiseum Medical Centers, LLC, Dba
Acute Care Hospitals · Macon, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 30106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AUSTELL, GA 30106
AUSTELL, GA 30106
AUSTELL, GA 30106
AUSTELL, GA 30106
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gretchen Anderson's NPI number?
The NPI number for Gretchen Anderson is 1811286297. It was assigned to this individual provider in the NPPES registry on April 6, 2011. The provider is also known as Dr. Gretchen Nicole Allison D.O..
Where is Gretchen Anderson located?
Gretchen Anderson practices at 3825 Medical Park Dr Ste 100, Austell, GA 30106. The listed phone number is (470) 267-1760.
What is Gretchen Anderson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Gretchen Anderson enrolled in Medicare?
Yes. Gretchen Anderson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gretchen Anderson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Anderson reassigns Medicare benefits to 6 organizations: Wellstar Medical Group, LLC (Austell, GA), Piedmont Specialty Hospital Billing LLC (Jasper, GA), Phoebe Gastroenterology Associates (Albany, GA), Hospital Authority Of Valdosta And Lowndes County, Georgia (Nashville, GA), South Georgia Medical Center Inc (Nashville, GA) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gretchen Anderson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gretchen Anderson accept?
Health plans from Alliant Health Plans, Inc. and Oscar Health list Gretchen Anderson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Gretchen Anderson affiliated with any hospitals?
According to CMS data, Gretchen Anderson is affiliated with Phoebe Putney Memorial Hospital, Sgmc Health and Coliseum Medical Centers, LLC, Dba.
When was this NPI record last updated?
The NPPES record for Gretchen Anderson was last updated on March 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Gretchen Nicole Anderson, D.O. · NPI 1811286297
Gastroenterology physician in Austell, Georgia. Individual provider, active in the CMS NPPES registry since April 6, 2011.
## Identity
- **NPI:** 1811286297 (Entity type: Individual)
- **Enumerated:** April 6, 2011
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 76269 (Georgia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3825 MEDICAL PARK DR STE 100, Austell, GA 30106-6831
- **Phone:** (470) 267-1760
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Wellstar Medical Group, LLC (NPI 1457766339, Austell, GA); Piedmont Specialty Hospital Billing LLC (NPI 1699290510, Jasper, GA); Phoebe Gastroenterology Associates (NPI 1659627131, Albany, GA); Hospital Authority Of Valdosta And Lowndes County, Georgia (NPI 1447591649, Nashville, GA); South Georgia Medical Center Inc (NPI 1497521801, Nashville, GA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** March 27, 2025
- **Other identifiers:** Other 5315046810 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1811286297) · Data from the CMS NPPES public registry.